Ricoh GXR S10 24-72mm has a
10.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CCD sensor and features Smooth Imaging Engine IV processor. On the other hand, Fujifilm F200EXR has a
12.0MP 1/1.6-inch (8 x 6 mm ) sized CCD sensor .
Below you can see the GXR S10 24-72mm F2.5-4.4 VC and F200EXR sensor size comparison.
As seen above, Fujifilm F200EXR has a 1.2x Larger sensor area than Ricoh GXR S10 24-72mm. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.